00:00
3
6
8
9
1
4
9
3
5
2
4
8
2
8
1
7
3
9
6
9
2
3
4
5
2024-11-02(Advanced) Puzzles
Test reasoning and strategy skills
Follow steps to gradually complete difficult puzzles.
Tips for Solving Sudoku
- Start with squares with fewer numbers: Begin with rows, columns, or blocks that already have more numbers filled; fewer candidates make it easier to solve.
- Pencil marks (notes): For beginners, write possible numbers in small font in empty squares for reference.
- Review: If stuck, check for duplicate numbers or rule violations.
- Basic rule: Do not repeat the same number in the same row, column, or 3x3 block.